Ocp

Already paying for Claude Pro/Max? Use your subscription as an OpenAI-compatible API — $0 extra cost.

Open source from day one, used daily by my family, maintained on nights and weekends. If OCP saves you money too, you can ☕ buy me a coffee — full story below.

If OCP saves you a setup, a ⭐ helps other folks discover it. Issue reports are even more useful — that's the highest-quality feedback this project gets.

OCP turns your Claude Pro/Max subscription into a standard OpenAI-compatible API on localhost. Any tool that speaks the OpenAI protocol can use it — no separate API key, no extra billing.

Cline          ──┐
OpenCode       ───┤
Aider          ───┼──→ OCP :3456 ──→ Claude CLI ──→ Your subscription
Continue.dev   ───┤
OpenClaw       ───┘

One proxy. Multiple IDEs. All models. $0 API cost.

Contents

• Why OCP? · Supported Tools
• Quickstart
• How It Works
• Reference: Available Models · API Endpoints · Environment Variables
• Modes & operations: LAN & multi-user → docs/lan-mode.md · Subscription-pool (TUI) mode → docs/tui-mode.md · Upgrading → docs/upgrading.md
• Built-in Usage Monitoring · Response Cache · Structured Outputs · Images / Multimodal · OpenClaw Integration
• Troubleshooting → docs/troubleshooting.md
• Repository Layout · Security · Governance · Support OCP · License

Why OCP?

There are several Claude proxy projects. OCP picks a specific lane: align tightly with what cli.js actually does, observe + multiplex what's already there, don't extend the protocol. What you get: